
<template>
  <el-container class="home_container">
    <!-- 头部区域 -->
    <el-header>
      <div style="height:100%;">
        <img src="../assets/heima.png" alt />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="loginOut">退出</el-button>
    </el-header>
    <!-- 页面主题区域 -->
    <el-container>
      <!-- 左侧 -->
      <el-aside :width="isCollapse?'64px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF"
        :collapse="isCollapse" :collapse-transition='false' :unique-opened='true' :router='true'
        :default-active='activePath'>
          <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menuList" :key="item.id" >
            <!-- 一级菜单模版区 -->
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id"
            @click="saveNavState('/'+subItem.path)">
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧 -->
      <el-container>
        <el-main>
          <!-- 路由占位符 -->
          <router-view></router-view>
        </el-main>
      </el-container>
    </el-container>
  </el-container>
</template>
<script>
export default {
  data() {
    return {
      menuList:[],
      activePath:'',
      isCollapse:false,//不折叠
      iconsObj:{
        '125':'iconfont icon-feeding',
        '103':'iconfont icon-goodnight',
        '101':'iconfont icon-meeting',
        '102':'iconfont icon-housecleaning',
        '145':'iconfont icon-feeding'
      }
    }
  },
  created(){
      this.getMenuList()
      this.activePath=window.sessionStorage.getItem('activePath')
  },
  methods: {
    loginOut() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 获取所有菜单
    async getMenuList(){
        
        const {data:res} = await this.$http.get('menus')
        console.log(res)
        if (res.meta.status!==200) return this.$message.error(res.meta.msg)
        this.menuList=res.data
    },
    //点击按钮切换菜单的折叠与展开
    toggleCollapse(){
      this.isCollapse=!this.isCollapse
    },
    // 保存链接的激活状态
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath=activePath
    }
  }
}
</script>

<style lang="less" scoped>
.home_container {
  height: 100vh;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  img {
    height: 98%;
  }
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
  .toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont{
  margin-right: 10px;
}
</style>